PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Human activity can directly trigger exacerbating factors such as over farming, excessive irrigation,[20] deforestation, and erosion adversely impact the ability of the land to capture and hold water.[21] In arid climates, the main source of erosion is wind.[22] Erosion can be the result of material movement by the wind.
http://www.w3.org/ns/prov#wasQuotedFrom
  • digplanet.com